... drillgrindingmachine钻头磨床 drillhead钻床头 drilljigbush钻套 ...
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multi-drillhead 多轴钻床主轴管
multiple-drillhead 多轴钻主轴箱
The drillhead of IceCube's Enhanced Hot Water Drill emerges from the ice in a December 2010 picture.
冰立方增强型热水钻的钻头从冰层中显露出来。
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